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2012-01-18encrypted-keys: fix rcu and sparse messagesMimi Zohar
Enabling CONFIG_PROVE_RCU and CONFIG_SPARSE_RCU_POINTER resulted in "suspicious rcu_dereference_check() usage!" and "incompatible types in comparison expression (different address spaces)" messages. Access the masterkey directly when holding the rwsem. Changelog v1: - Use either rcu_read_lock()/rcu_derefence_key()/rcu_read_unlock() or remove the unnecessary rcu_derefence() - David Howells Reported-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2012-01-18keys: fix trusted/encrypted keys sparse rcu_assign_pointer messagesMimi Zohar
Define rcu_assign_keypointer(), which uses the key payload.rcudata instead of payload.data, to resolve the CONFIG_SPARSE_RCU_POINTER message: "incompatible types in comparison expression (different address spaces)" Replace the rcu_assign_pointer() calls in encrypted/trusted keys with rcu_assign_keypointer(). Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2011-11-16encrypted-keys: module build fixesMimi Zohar
Encrypted keys are encrypted/decrypted using either a trusted or user-defined key type, which is referred to as the 'master' key. The master key may be of type trusted iff the trusted key is builtin or both the trusted key and encrypted keys are built as modules. This patch resolves the build dependency problem. - Use "masterkey-$(CONFIG_TRUSTED_KEYS)-$(CONFIG_ENCRYPTED_KEYS)" construct to encapsulate the above logic. (Suggested by Dimtry Kasatkin.) - Fixing the encrypted-keys Makefile, results in a module name change from encrypted.ko to encrypted-keys.ko. - Add module dependency for request_trusted_key() definition Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-11-16encrypted-keys: fix error return codeMimi Zohar
Fix request_master_key() error return code. Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-10-31security: follow rename pack_hex_byte() to hex_byte_pack()Andy Shevchenko
There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Mimi Zohar <zohar@us.ibm.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-09-20encrypted-keys: check hex2bin resultMimi Zohar
For each hex2bin call in encrypted keys, check that the ascii hex string is valid. On failure, return -EINVAL. Changelog v1: - hex2bin now returns an int Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2011-09-15encrypted-keys: IS_ERR need include/err.hStephen Rothwell
Fixes this build error: security/keys/encrypted-keys/masterkey_trusted.c: In function 'request_trusted_key': security/keys/encrypted-keys/masterkey_trusted.c:35:2: error: implicit declaration of function 'IS_ERR' Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-09-14encrypted-keys: remove trusted-keys dependencyMimi Zohar
Encrypted keys are decrypted/encrypted using either a trusted-key or, for those systems without a TPM, a user-defined key. This patch removes the trusted-keys and TCG_TPM dependencies. Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-09-14encrypted-keys: create encrypted-keys directoryMimi Zohar
Move all files associated with encrypted keys to keys/encrypted-keys. Signed-off-by: Mimi Zohar <zohar@us.ibm.com>